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bpo-38191: Accept arbitrary keyword names in NamedTuple() and TypedDict(). (GH-16222)

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This includes such names as "cls", "self", "typename", "_typename",
"fields" and "_fields".
Passing positional arguments by keyword is deprecated.
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Serhiy Storchaka 2019-09-17 21:22:00 +03:00 • committed by GitHub
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Constructors of :class:`~typing.NamedTuple` and :class:`~typing.TypedDict`
types now accept arbitrary keyword argument names, including "cls", "self",
"typename", "_typename", "fields" and "_fields". Passing positional
arguments by keyword is deprecated.